Vacuum cleaner for vehicle manufacturing production line

Abstract

A vacuum cleaner includes a vacuum suction pipe through which impurities are collected together with air. A suction side plate has a central hole which corresponds with the vacuum suction pipe so that the vacuum suction pipe is fitted in the central hole. A holding plate is spaced apart from the suction side plate. A spring unit connects the suction side plate with the holding plate to elastically adjust a distance between the suction side plate and the holding plate.

What is claimed is: 
     
       1. A vacuum cleaner, comprising:
 a vacuum suction pipe through which impurities are collected together with air; 
 a suction side plate having a central hole which corresponds with the vacuum suction pipe so that the vacuum suction pipe is fitted in the central hole; 
 a holding plate spaced apart from the suction side plate; and 
 a spring unit connecting the suction side plate with the holding plate to elastically adjust a distance between the suction side plate and the holding plate, 
 wherein the spring unit comprises: 
 a rod having one end connected with the suction side plate through a ball joint and another end penetrating the holding plate; 
 a stopper ring fixing the rod to the holding plate to prevent disengagement between the rod and the holding plate; and 
 an elastic member disposed along the rod to vary the distance between the holding plate and the suction side plate. 
 
     
     
       2. The vacuum cleaner of  claim 1 , wherein the vacuum suction pipe is connected with the central hole to collect the impurities through the central hole of the suction side plate. 
     
     
       3. The vacuum cleaner of  claim 1 , wherein the spring unit is arranged along a circumference of the vacuum suction pipe. 
     
     
       4. The vacuum cleaner of  claim 3 , wherein the spring unit includes at least two spring units. 
     
     
       5. The vacuum cleaner of  claim 1 , wherein the elastic member is a coil spring and surrounds an exterior of the rod. 
     
     
       6. The vacuum cleaner of  claim 1 , wherein the holding plate is movably connected with a robot arm. 
     
     
       7. The vacuum cleaner of  claim 1 , further comprising a suction pad formed of a rubber material and mounted to a lower side of the suction side plate along an external circumference. 
     
     
       8. The vacuum cleaner of  claim 1 , wherein the ball joint comprises:
 a ball housing fixed to the suction side plate; and 
 a ball formed at the one end of the rod and inserted into the ball housing. 
 
     
     
       9. A vacuum cleaner comprising:
 a vacuum suction pipe through which impurities are collected together with air; 
 a suction side plate having a central hole which corresponds with the vacuum suction pipe so that the vacuum suction pipe is fitted in the central hole; 
 a holding plate spaced apart from the suction side plate; 
 a rod having one end connected with the suction side plate through a ball joint and another end penetrating the holding plate; 
 a stopper ring fixing the rod to the holding plate to prevent disengagement between the rod and the holding plate; and 
 an elastic member disposed along the rod to vary a distance between the holding plate and the suction side plate. 
 
     
     
       10. The vacuum cleaner of  claim 9 , wherein the ball joint comprises:
 a ball housing fixed to the suction side plate; and 
 a ball formed at the one end of the rod and inserted into the ball housing. 
 
     
     
       11. The vacuum cleaner of  claim 10 , wherein the ball housing is arranged along a circumference of the vacuum suction pipe. 
     
     
       12. The vacuum cleaner of  claim 10 , wherein the vacuum suction pipe collects the impurities through the central hole of the suction side plate. 
     
     
       13. The vacuum cleaner of  claim 9 , further comprising a suction pad formed of an elastic material and mounted to a lower side of the suction side plate along an external circumference of the central hole,
 wherein the suction pad deflects according to a form of a contact surface.